Prompt from Roseavia3: Ok so if it's with a fem reader do the period one cos like Loki can be confused and panic at why she is bleeding and stuff like that.

A/N: I loved the idea of MTB Loki (just after him and Y/N got together) panicking in the middle of the night because Y/N is having period pains and he has absolutely no clue what's going on.

(If you haven't read my Loki x reader slow burn 'Meant to be', all you need to know about these chapters is that the reader and Loki can communicate through their thoughts. This is signalled when writing is in italics)

...

You're curled against his side, sleeping soundly. Loki can't remember being happier.

It's only been a few days since he finally dared to make a move on you. And it had actually, thankfully, paid off. He didn't think he'd ever been so nervous in his life, and that was saying something. The mistletoe had been a bit of a cliché move, he had to admit, but he'd had no better ideas at the time.

You hadn't seemed to have minded all that much.

And then you'd opened your mind to him, completely. Loki could only imagine how amazing it must have felt for you to let down your guard completely. He's still working on that himself, but again, you don't seem to mind.

How on Asgard had he landed you?

He shifts slightly and turns his gaze to your sleeping form, one corner of his mouth quirking upwards as he does. He is lying on his back on his bed with one arm around you, and you're sprawled across him, one leg over both of his and one arm flung out across his chest, your fingers curled against nothing. The duvet is flung off of you, half on the floor.

Loki hates being under the duvet; it's too warm. Luckily you don't feel the cold, because his skin is cool to touch, and can't be much fun to sleep against. You claim to like it.

Actually, you do like it. He knows; he can read your mind now.

Your head lies on his chest, just under his chin, and you're frowning slightly. Now that your mind is open Loki is able to see your dreams, but he tries not to invade too much upon your privacy. Tonight you're dreaming of nothing, your mind devoid of thought as you sleep.

It must be peaceful, Loki thinks, to not dream of anything, turning his gaze back to the ceiling. He doesn't sleep unless he's tired himself out by using magic, or has hurt himself and needs to heal, neither of which he does tonight.

You're getting better at not needing sleep; Asgardians need to sleep a lot less than Midgardians, but you're so used to sleeping every night that it's taking you a while not to feel tired during the days when you do stay up all night.

It's currently 4am, and Loki knows it'll be at least another four hours until you wake. He doesn't mind. After the months of torturous, agonising waiting and watching he's had to endure he would be perfectly content to lie here for a week with you in his arms. Even if you are fast asleep.

About twenty minutes passes before he feels the first tug of discomfort, low in his stomach. He frowns, and you shift slightly, sighing heavily in your sleep.

What was that? Loki has an extremely high pain tolerance, but that hurt. It's stopped now, but he is disconcerted. He's never felt anything like that before, and it's worrying him slightly.

Then it comes back.

Loki lies still, determined not to wake you, gritting his teeth. It really hurts. In his head, he runs through a short list of what could be causing the pain. It's an extremely short list: he has no idea what it might be.

The pain comes and goes, and Loki lies still, enduring it, jaw clenched, until finally a pain so sharp lances through his lower abdomen that he physically flinches. And so do you.

Something clicks in Loki's brain as you start to wake up. The pain is yours. He's an idiot for not realising sooner.

He does the only rational thing that he can think of. He panics.

"Y/N, what is that? What's wrong with you? It's-" Loki winces as another stab of pain shoots through him as you pull away from him and sit up, bleary eyed. You blink at him a few times, before registering that he's pressing a hand to his lower stomach.

"Can you feel it too?" you ask, your voice endearingly thick with sleep, a smile beginning to work its way on to your face.

"Feel- yes, I can. Do you need me to heal you? What is it?" he asks, concern and confusion lacing his voice as he registers the smile on your face.

"Loki, they're just cramps." you grin, swinging your legs over the side of the bed slowly.

"...cramps?"

"Period pains." you explain patiently. Loki frowns.

"But- that hurt." he tells you.

"Yes," you smile, rolling your eyes. "I'll be back in a sec."

Loki watches as you pad bare foot from the room and sneak across the corridor into your room. He knows about periods, obviously, but he had no idea that women had to endure... that.

And every single month. Gods.

You return quickly, silently closing the door behind you and crossing the room to climb back into bed with him.

"It still hurts." Loki informs you.

"Yes, I know." you tell him, managing a tired smile as you massage your stomach.

"What helps?" he asks, watching you in concern; you can't help but scoot towards him and let him wrap his arms around you. He looks ridiculously worried. You love him.

"You being adorably alarmed about something which requires no concern." you tell him, closing your eyes happily as he presses a kiss to the top of your head.

"Really, what helps?" he repeats.

"I've taken some painkillers; they'll kick in soon." you murmur, already beginning to fall back to sleep.

Loki moves to lie back down and holds out an arm to you; you join him, resuming your previous position. This time you place a hand on his lower abdomen, smirking at the thought of him experiencing period pains.

"Sorry." you say sleepily, tracing his abs gently with your fingers. He catches your hand in his and squeezes it softly.

"Don't apologise. You can't help it." he tells you, and you hum in agreement, suddenly too tired to voice a response. Then you are asleep again.

Loki goes back to watching the ceiling, your warm hand encased in his cool one. The pains have faded a bit.

Nevertheless, he's not sure he's looking forward to having period pains every month from now on.